Create Mailbox

curl --request POST \
  --url https://api.hybridbox.io/v1/public/accounts/{account_id}/mailboxes \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "domain": "<string>",
  "first_name": "<string>",
  "last_name": "<string>",
  "local_part": "<string>"
}
'

{
  "created_at": "<string>",
  "domain_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "domain_name": "<string>",
  "first_name": "<string>",
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "last_name": "<string>",
  "local_part": "<string>",
  "primary_email": "<string>",
  "quota": {
    "allowed": 123,
    "used": 123
  },
  "status": "<string>",
  "updated_at": "<string>",
  "aliases": [
    {
      "alias": "<string>",
      "is_catch_all": false
    }
  ],
  "workspace_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "workspace_name": "<string>"
}